Debinder trap

A debinder trap for treating binder gas thermal-cracked in sintering process of metal injection molding, comprising:

• a hollow barrel body having a barrel cover, a barrel wall and a barrel bottom, the outer face of the barrel wall defining an inflow hole and a drain hole, an inlet and an outlet being apart opened in the barrel cover and penetrating through the barrel cover;
• a plurality of baffles disposed in the barrel body to define a guide channel of which the entrance is communicated with the inlet of the barrel body and the exit is communicated with the outlet of the barrel body;
• and
• a temperature controller containing liquid material therein, the temperature controller being connected with the barrel body via an inflow pipe and a drain pipe connecting in the inflow hole and the drain hole respectively, an accommodating channel passing through the inside of the barrel body and extending from the inflow hole to the drain hole, the temperature controller regulating the temperature of the liquid material between a low temperature and a high temperature to change internal environment of the barrel body into low-temperature or high-temperature, by virtue of conveying the liquid material into the accommodating channel through the inflow pipe and further flowing the liquid material back through the drain pipe to form a circulation flow;
• wherein the binder gas enters the barrel body through the inlet and flows along the guide channel to be condensed into solid binder and attached to inner faces of the barrel body and the baffles by the low-temperature environment, and then the solid binder is molten to sink on the barrel bottom by the high-temperature environment to keep the inner faces of the barrel body and the baffles clean before next using the debinder trap.